03
Jun
‘string’ == true, 0 == false, ‘string’ == 0
What happens in the follow piece of code?
$a = ‘string’;
$b = 0;
if($a == true && $b == false && $a == $b) {
echo ‘hum rum’;
}
- In ‘string’ == true, any non-null string evaluates to true when compared with a Boolean.
- In 0 == false, the integer 0 undergoes implicit conversation to Boolean and evaluates to false.
- In ‘string’ == 0, a string is silently promoted to integer when compared to an integer.
